TRANSPARENT WAVEGUIDE DISPLAY
First Claim
1. An apparatus for displaying an image comprising:
- a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and
a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction;
wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.
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Accused Products
Abstract
One embodiment provides an apparatus for displaying an image comprising: a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.
464 Citations
21 Claims
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1. An apparatus for displaying an image comprising:
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a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for displaying an image comprising:
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an input image node for providing image modulated light; a first optical substrate comprising at least one waveguide layer configured to propagate the modulated light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the modulated light from the first substrate along the first direction; a second optical substrate comprising at least one waveguide layer configured to propagate the modulated light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract the modulated light from the second substrate along the second direction; wherein the at least one grating lamina of the first optical substrate is configured to couple the modulated light into the first substrate; the at least one grating lamina of the second optical substrate is configured to couple the modulated light extracted from the first substrate into the second substrate; and the at least one grating lamina of at least one of the first and second optical substrates has a k-vector that varies along the respective direction of light propagation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of displaying an image, the method comprising:
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coupling a modulated light from an input image into a first optical substrate; extracting the light from the first substrate; and coupling the extrated light from the first substrate into the second substrate; wherein; the first optical substrate comprises at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract light from the first substrate along the first direction; and the second optical substrate comprises at least one waveguide layer configured to propagate light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; and the at least one grating lamina of at least one of the first and second optical substrates comprises a SBG in a passive mode. - View Dependent Claims (20, 21)
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Specification